| 单词 | cancer |
| 释义 | cancer[ kan-ser ] / ˈkæn sər / SEE SYNONYMS FOR cancer ON THESAURUS.COM nounPathology.
any evil condition or thing that spreads destructively; blight. genitive Can·cri [kang-kree]. /ˈkæŋ kri/. (initial capital letter)Astronomy. the Crab, a zodiacal constellation between Gemini and Leo. (initial capital letter)Astrology.
(initial capital letter)tropic of. See under tropic (def. 1a). Origin of cancer1350–1400; Middle English <Latin: literally, crab; Latin stem cancr-, dissimilated from *carcr-, with *carc-r- akin to Greek karkínos,Sanskrit karkata crab; see canker SYNONYMS FOR cancer2 sickness, evil, plague, scourge. SEE SYNONYMS FOR cancer ON THESAURUS.COM OTHER WORDS FROM cancerWords nearby cancercancellous, cancellous bone, cancellous tissue, cancellus, cancel out, cancer, cancer á deux, cancerate, canceration, cancer cluster, cancer family Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for cancerBritish Dictionary definitions for cancer (1 of 2)cancer / (ˈkænsə) / nounany type of malignant growth or tumour, caused by abnormal and uncontrolled cell division: it may spread through the lymphatic system or blood stream to other parts of the body the condition resulting from this an evil influence that spreads dangerously Other words from cancerRelated prefix: carcino-Derived forms of cancercancerous, adjectivecancerously, adverbWord Origin for cancerC14: from Latin: crab, a creeping tumour; related to Greek karkinos crab, Sanskrit karkata British Dictionary definitions for cancer (2 of 2)Cancer / (ˈkænsə) / noun Latin genitive Cancri (ˈkæŋkriː)astronomy a small faint zodiacal constellation in the N hemisphere, lying between Gemini and Leo on the ecliptic and containing the star cluster Praesepe astrology
tropic of Cancer See tropic (def. 1) adjectiveastrology born under or characteristic of Cancer Also (for senses 2b, 4): Cancerian (kænˈsɪərɪən) Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for cancercancer A disease characterized by rapid growth of cells in the body, often in the form of a tumor. Cancer is invasive — that is, it can spread to surrounding tissues. Although this disease is a leading cause of death in the United States, research has provided considerable insight into its many causes (which may include diet, viruses, or environmental factors) and options for treatment (which include radiation, chemotherapy, surgery, and possibly gene therapy). notes for cancerThe term cancer is often used to describe a nonmedical condition that is undesirable, destructive, and invasive: “Watergate was a cancer on the presidency.” The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for cancercancer [ kăn′sər ] n.Any of various malignant neoplasms characterized by the proliferation of anaplastic cells that tend to invade surrounding tissue and metastasize to new body sites. The pathological condition characterized by such growths. Other words from cancercan′cer•ous (kăn′sər-əs) adj.The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for cancer (1 of 2)cancer [ kăn′sər ] A disease characterized by any of various malignant neoplasms composed of abnormal cells that tend to proliferate rapidly and invade surrounding tissue. Without treatment such as chemotherapy or radiation, cancer cells can metastasize to other body sites and cause organ failure and death. A malignant tumor. A Closer LookThe human immune system often fights off stray cancer cells just as it does bacteria and viruses. However, when cancer cells establish themselves in the body with their own blood supply and begin replicating out of control, cancer becomes a threatening neoplasm, or tumor. It takes a minimum of one billion cancer cells for a neoplasm to be detectable by conventional radiology and physical examinations. Cancer, which represents more than 100 separate diseases, destroys tissues and organs through invasive growth in a particular part of the body and by metastasizing to distant tissues and organs through the bloodstream or lymph system. Heredity, lifestyle habits (such as smoking), and a person's exposure to certain viruses, toxic chemicals, and excessive radiation can trigger genetic changes that affect cell growth. The altered genes, or oncogenes, direct cells to multiply abnormally, thereby taking on the aggressive and destructive characteristics of cancer. Treatments such as surgery, chemotherapy, and radiation are effective with many cancers, but they also end up killing healthy cells. Gene therapy attempts to correct the faulty DNA that causes the uncontrolled growth of cancer cells. Researchers are investigating other treatments, such as immunotherapy (the stimulation of the body's natural defenses), vectorization (aiming chemicals specifically at cancer cells), and nanotechnology (targeting cancer cells with minute objects the size of atoms). Scientific definitions for cancer (2 of 2)Cancer A faint constellation in the Northern Hemisphere near Leo and Gemini. Cancer (the Crab) is the fourth sign of the zodiac. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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